Quantitative Evaluation of the Efficiency of Water-in-Crude-Oil Emulsion Dehydration by Electrocoalescence in Pilot-Plant and Full-Scale Units

详细信息    查看全文

• 作者：Patr铆cia Suemar ; Elizabeth F. Fonseca ; Raquel C. Coutinho ; Fabricio Machado ; Rafael Fontes ; Lu铆s Carlos Ferreira ; Enrique L. Lima ; Pr铆amo A. Melo ; Jos茅 Carlos Pinto ; M谩rcio Nele
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2012
• 出版时间：October 17, 2012
• 年：2012
• 卷：51
• 期：41
• 页码：13423-13437
• 全文大小：546K
• 年卷期：v.51,no.41(October 17, 2012)
• ISSN：1520-5045

文摘

The electrostatic dehydration of crude-oil emulsions were investigated using pilot-plant and industrial data. The experimental data obtained with seven different crudes over a wide range of viscosities in a pilot plant showed that the electric field and the residence time were the most important operating variables. Various crude-oil properties influenced the emulsion stability, including the total acid number and the resin, asphaltene, and metal contents, but their effects were statistically correlated with the crude-oil viscosity and density. Using pilot-plant data, a power-law model relating the water content in the treated oil to the dehydration operating conditions and the crude-oil viscosity and density was developed to aid in the design and evaluation of industrial units. The model was tested against industrial data and found to be able to predict very well the performance of the industrial units.